A molecule of ________ has two heads and resembles a pair of golf clubs twisted around each other.

A. troponin
B. myosin
C. glycogen
D. actin
E. myoglobin


Answer: B

Anatomy & Physiology

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Which of the following receive(s) blood during ventricular systole?

a.) aorta only b.) pulmonary arteries only c.) pulmonary veins only d.) both the aorta and pulmonary trunk

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The white matter of the spinal cord contains ________

A) myelinated and unmyelinated nerve fibers B) unmyelinated nerve fibers only C) cell bodies D) myelinated nerve fibers only

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Which lymphatic organ is located in the left hypochondriac region?

A. Thymus B. Tonsils C. Appendix D. Spleen E. Liver

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Which term describes an increase in angle between articulating bones?

A) Extension B) Flexion C) Adduction D) Abduction

Anatomy & Physiology